Pure Fucking Lollocaust. That sounds like grind, due to the title and song length. Check out Exhumed, cool goregrind. Haemmorage are also a good goregrind band, first Spanish grind band for that matter, features an ex-guitarist from Avulsed.

Mago de Oz - Jesus de Chamberi

d00d. This fucking rules! Get some traditional heavy metal and throw in some Celtic vibe with violins in between. The singer isn't that annoying, he just has a bit of a Madrid accent, which almost every Spanish-speaking person hates.